Sharks do not sleep the same way humans or most animals do. Some species must keep swimming to push water over their gills, while others can rest on the ocean floor. Scientists have discovered that ...

Everyone knows sharks have a reputation for being intimidating, their bites can be fatal and some can grow to be massively large. But there’s probably plenty about sharks you don’t know. In fact, ...

A team of researchers from La Trobe University, the University of Western Australia and the University of Auckland, has found evidence that at least one type of shark sleeps. In their paper published ...

Predators in perpetual motion. Sleepless in our seas. If that’s your image of sharks, you’re not alone. And for good reason: sharks must swim to breathe (or so we were told). The science of how sharks ...

A recent study from the University of Miami found that artificial light at night (ALAN) causes a reduction in melatonin in some shark species. ALAN has been shown to adversely impact terrestrial ...

A video captured by an underwater robot has scientists scratching their heads. The video, which was captured in Beagle Marine Park in Australia, shows thousands of female sharks sleeping on the ...

Researchers at the University of Miami recently published research results involving the first-ever measurements of melatonin in wild sharks. The data highlights the impact of bright coastal ...

Port Jackson sharks grow to about 5.5 feet in length and are known for having “a distinctive blunt head” and harness-like markings, the Australian Museum reports. They prefer rocky environments near ...